. >> remember what lloyd benson said about dan quayle and president kennedy. >> yes, that was the famous line, jack kennedy was a friend of mine. senator, you're no jack kennedy. >> in jim lair's book "turning point," he makes the case that they prepared that line in advance because dan quayle had made that comment over and over again. >> the comparison with president clinton. >> so both those campaigns are going in with prescripted lines having watched what the other candidates are saying. >> it's worth noting that mitt romney has been debating over the past two years with his opponents. president obama has been practicing, no doubt, but it's harder for a president to do because he's busier and doesn't like being addressed in a challenging way. >> but as michael lewis pointed out, this president likes to practice in a stealth way. >> yes, it's true. i'm sure he's going to be prepared. >> james fallows, thank you so much. >> my pleasure. >>> american airlines is facing new trouble. the faa is investigating two incidents where a row of passenger seats came loose inned my flight. mark stra